I was just recommended this mod, so I checked out the site, this site and some gameplay videos.

Can somebody explain to me in what way it is intriguing to stand in an elevator watching doors open time after time?
Don't take this comment as sarcastic downplaying, but please help me understand how this is anything other than eyecandy for people in voice chat?

as you said there are no set rules regarding this, so when it comes to "borrowing" something one should always decide according to the situation. while this only indirectly has to do with your qotd, it is a common issue amongst modders or people calling themselves modders.